<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  
  <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
  <script>
    $.ajax({
      url: 'http://www.liulongbin.top:3006/api/getbooks',
      success: function(res) {
        console.log(789, res)
      }
    })
  </script>
</body>
</html>